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...or 15 does not work). When I install R it gives an warning: > library(ggplot2) Warning message: package ‘ggplot2’ was built under R version 2.14.2 After that, when i use gplot2: > ggplot()+geom_bar(aes(x=factor(1),y=10)) Error in initFields(scales = scales) : could not find function "initRefFields" I found on internet that the solution for this problem is upgrading to a newer version of R (and indeed, on 2.15 or 3.0 ggplot2 works fine). spss needs 2.14.0, however. Does anyone know a solution? Thanks Frans [[alternative HTML version deleted]]